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This week's theme was water and air, and we had fun with it. We did all kinds of scientific things. First of all, we learned that scientists call water H₂O. Next, we learned that water can be found in 3 forms...a solid (ice), a liquid (we called that drippy water.), and a gas (clouds). Then we did all sorts of experiments to find out what sinks and floats in water, that air is lighter than water (that's why bubbles always go up), water has surface tension, water magnifies things, that water level goes up when you put things into it, water evaporates, and water condenses.

Below are pictures of some of our experiments. Because scientists always make a hypothesis before their experiments (and we are scientists!), we made a lot of hypotheses. Some are included below. We celebrated if we were correct and if we weren't, we learned to say, "I learned something today!"

We started an evaporation experiment in our classroom.

With Lid

With No Lid

*It will get less liquid.

*It will stay the same.

*It will get less liquid.

*It will dry out.

*It will turn into gas (evaporation).

Here are our predictions. We're still waiting on the results. So far the water level on the right has gone down just a little.

Here's a picture of condensation. We boiled water in a tea kettle and caught the steam in a jar. As it cooled, it turned from a gas to a liquid.

We made ice in the 3 different containers and predicted which one would melt first. 9 of us predicted the one on the right. 4 of us predicted the one on the bottom. 11 people, including Mr. Kauk, predicted the one on the right. Mr. Kauk chose that one because it wasn't as thick. He and 10 friends were right!

We experimented with different items to see whether they would sink or float in water. Can you guess which items sunk and which ones floated?

When we were doing sink and float, we found that a ball of clay will sink... but if we formed it into a boat it would float!

We put drops of water on different coins. First, we predicted how many drops would fit on a quarter. Here are our predictions.

Mason--11
Ouray--11
Asher--15
Keeley--14
Sydney--20
Jillian--12
Tommy--20
Hunter--17
Aidan--15
Kory--17
Payton--12
Eli--12
Timmy--11
Micah--11
Ivy--13
Jackson--11
Mrs. Hayes--15
Mrs. Moneymaker-30
Mrs. Brockaus-26
The quarter actually held 41 drops of water!! (Who's done this before??)

Do you see the bubble of water on the quarter? Scientists call this surface tension...we just called it water with 'skin' holding it together!

We poured yellow oil into blue water. Some of us predicted that it would turn green because blue and yellow make green (like the water on the right).

We poured liquid into different shaped containers. We found that the liquid changes shape to fit the container. We poured the liquid into tall, thin containers and into a short, fat container. Before we poured it into the 'short, fat' container, we predicted how full it would get. That's what the green rubber band is for.

We've all heard it before, "Don't blow bubbles in your milk. You're going to make a mess!" Well in kindergarten, it's okay to make a little mess once in awhile. We mixed paint, soap, and water with a whole bunch of air for this painting project! We will be using our bubble paintings for a background for a future art project.

Air is a gas, and it takes up space. It's also fun for painting!!